Which of the Following Provisions Established the Parameters of the Creation

Which of the following provisions established the parameters of the creation of a common currency for the European Union?

A) The Economic and Monetary Union provision of the Maastricht Treaty
B) The Single Currency provision of the Treaty of Rome
C) The Enhanced Cooperation provision of the Treaty of Utrecht
D) The Economic Union provision of the Treaty of Vienna
E) The Free Trade provision of the Anglo-Irish Treaty